Não informado. (1960). Canadian plant disease survey. Plant Research Institute, Department of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Canadian Plant Disease Survey. Ottawa: Plant Research Institute, Department of Agriculture, 1960.
Style de citation MLA (8e éd.)Não informado. Canadian Plant Disease Survey. Plant Research Institute, Department of Agriculture, 1960.
Attention : ces citations peuvent ne pas être correctes à 100%.